Engineered by Honda for the scooter motorcycle segment, the 2015 Honda Silver Wing GT 400 utilizes a 582 cc (35.5 cu in) liquid-cooled twin, four-stroke layout. In factory specification, peak output is rated at 49.6 HP (36.2 kW) at 7,000 rpm while maximum torque reaches 54 Nm (39.8 lb-ft) at 5,500 rpm, transferring power to the rear wheel through a automatic gearbox and belt final drive. With a specific output of 85.2 HP per liter and a 1,500 rpm working window between peak torque (5,500 rpm) and peak power (7,000 rpm), the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.
On the scales, the Silver Wing GT 400 measures 247 kg (545 lbs) wet (curb), translating to a power-to-weight ratio of 0.2 HP/kg (4.98 kg per horsepower). Rider ergonomics and chassis geometry center around a 754 mm (29.7 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 1,595 mm (62.8 in) wheelbase engineered for planted straight-line stability. The 16-liter (4.2 US gal) fuel tank paired with a rated consumption of 5 L/100 km provides an estimated theoretical range of roughly 320 km (199 miles) between fill-ups.
Within MotoLibrary's Honda archive, this model family spans 2 indexed model years from 2015 to 2016, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
85.2 HP/L
Power-to-Weight
0.2 HP/kg (4.98 kg/HP)
Power Band Window
5,500–7,000 rpm
Theoretical Range
~320 km (199 mi)
Engine
Displacement582.0 ccm (35.51 cubic inches)
Engine TypeTwin, four-stroke
Engine DetailsSingle cylinder, four-stroke
Power49.6 HP (36.2 kW)) @ 7000 RPM
Torque54.0 Nm (5.5 kgf-m or 39.8 ft.lbs) @ 5500 RPM
Compression10.2:1
Bore x Stroke72.0 x 71.5 mm (2.8 x 2.8 inches)
Valves/Cylinder4
Fuel SystemInjection. PGM-FI
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
IgnitionComputer-controlled fully transistorized with electronic advance
LubricationDry sump
CoolingLiquid
Transmission
GearboxAutomatic
Final DriveBelt (final drive)
ClutchAutomatic; centrifugal
Performance
Fuel Consumption5.00 litres/100 km (20.0 km/l or 47.04 mpg)
Greenhouse Gases116.0 CO2 g/km. (CO2 - Carbon dioxide emission)
Chassis
Frame TypeCenter backbone; steel tube
Rake26.8°
Trail103 mm (4.1 inches)
Front Suspension41mm hydraulic fork
Front Travel107 mm (4.2 inches)
Rear SuspensionSwingarm with dual hydraulic shocks with five-position spring-preload adjustability
Rear Travel114 mm (4.5 inches)
Wheelbase1595 mm (62.8 inches)
Wheels & Brakes
Front Tyre120/80-14
Rear Tyre150/70-13
Front BrakesSingle disc. Optional ABS, three-piston caliper
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Torque
Torque is useful for judging real-world pull, especially for touring, commuting and loaded riding.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
